Cytoplasmic osmoticum
WebMay 10, 2007 · As cytoplasmic osmoticum, proline counteracts the effect of salt accumulated within the cell vacuole (Steward and Lee, 1974) and protects cytoplasmic enzymes from high ionic concentration within the cell (Greenway and Munns, 1980). Different strategies are in progress for the development of NaCl-tolerant plants. WebThe initial stage of isolation requires plasmolysis of the cells by a suitable osmoticum, and in enzymatic isolation, a mixture of cell wall-degrading enzymes. The solution contains …
Cytoplasmic osmoticum
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WebFor purification, the protoplasts suspended in osmoticum are centrifuged using sucrose (20%) solution. The viable protoplasts float on the top surface of sucrose solution forming a band. These protoplasts are then collected, re-suspended in … WebJan 4, 2012 · An osmoticum is used to balance water potential outside a cell. With various osmolytes cells balance their internal water potential with the extracellular fluid. Wiki User ∙ 2012-01-04 13:37:02...
WebMay 27, 2003 · Ca2+ is released from the vacuole into the yeast cytoplasm on an osmotic upshock, but how this upshock is perceived was unknown. ... pH 6.0. We have experimented with different methods of changing bath osmolarity. For exploration, an osmoticum in stock solution was gently added to the bath with a micropipet within 1 cm … Webpressure and it is suggested that glycinebetaine is the major cytoplasmic osmoticum (with K+ salts) in these species at high salinities. Na+ salts may be preferentially utilized as vacuolar osmotica. Certain halophilic bacteria which grow in highly saline environ-ments have very high internal K+ levels (2). Enzymes isolated
WebSome evidence suggests that the differences in the organic osmoticum used may relate to the different inorganic ion contents of the plants. The accumulation of nitrogen dipoles as cytoplasmic osmotica may make heavy demands on the nitrogen economy of the plants and this problem is discussed briefly. WebAug 1, 1981 · It is likely that the alliinase liberated into the cytoplasm-osmoticum from burst vacuoles had already begun to degrade the alkyl cysteine sulphoxides from the cytoplasm. Both alkyl cysteine sulphoxides and alliinase were readily soluble in the aqueous osmoticum.
WebSome evidence suggests that the differences in the organic osmoticum used may relate to the different inorganic ion contents of the plants. The accumulation of nitrogen dipoles as …
WebJul 1, 1984 · Thus mannitol is not suitable as an osmoticum in osmotic adjustment experiments in these root tissues. Mannitol flows appear to be passive. Permeability to mannitol (about 10−10 m s−1 is greater at the plasmalemma than at the tonoplast in carrot, and this would tend to cause the cytoplasm to swell. how many millions are in a trillion dollarsWebJan 1, 2010 · Potassium (K) is the most abundant inorganic cation in plants. It is required for the activation of many enzymes, as a cellular osmoticum for rapidly expanding cells, and as a counter cation for anion accumulation and electrogenic transport processes. This chapter describes (1) the symptoms of potassium deficiency and the acclimatory … how are the queen\\u0027s pall bearers chosenWebThe results are considered to support the hypothesis that glycinebetaine acts as a cytoplasmic osmoticum to balance high vacuolar salt levels in certain halophytes. An … how are the property brothersWebact as a cytoplasmic osmoticum during salt stress act as a cytoplasmic osmoticum to counter salt stress act as a depressant of the central nervous system act as a depressant on central nervous system act as a DNA biosynthesis inhibitor act as a growth inhibitor act as a nodulation signal in the symbiosis with its legume host, Pisum sativum how many millions in a billion usWebJan 1, 2016 · This compound is known to act as a cytoplasmic osmoticum in certain halophytes during salt stress (Harborne et al. 1999). Catalpol from Veronica anagallis-aquatica. Veronica anagallis-aquatica is a species of flowering plant in the plantain family known by the common names water ... how are the puritans and pilgrims differentWebMar 20, 2024 · Consequently, K + constitutes a chief osmoticum to drive cellular expansion and organ movements, such as stomata aperture. Moreover, K + transport is critical for the control of cytoplasmic and luminal pH in endosomes, regulation of membrane potential, and enzyme activity. how are the psalms organizedWebJun 1, 1981 · Proline accumulated more rapidly in the sensitive cell line and the levels detected did not seem sufficient for it to act as an effective cytoplasmic osmoticum. None of the other amino acids detected exhibited comparable changes and the total of free amino acids other than proline was similar, in both lines, in the presence or absence of NaCl. how many millions in 400 billion